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SUP Fin Screw for Tower iSUPs


Replacement center fin screw. Compatible with any Tower inflatable SUP board. Includes only the two screw pieces. The fin is not included.

This screw is what we used to use to secure our iSUP fins before 2014. It actually provides stronger fin stability than our common hook + pin fin setup, which uses a plastic pin tethered to the fin base with a string, but the screws can get rusted and then they become nearly impossible to remove. Alternatively, the plastic pins are tethered to the fin (so you don't lose them) and they don't rust.

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On orders over $100

Extended Product Information

Most Secure Way to Connect a SUP Fin

This is the most secure way to attach your SUP fin to your inflatable paddle board. Having a strong fin locking component is important. The last thing you want is for your fin to fall out while in use and sink to the bottom of the water, never to see it again. The center fin is fundamental in the steering and planing of a stand up paddleboard. Without a center fin, a SUP will slide along the water and the user will have less directional control. This is why its important to securely fasten your center fin into place and make sure it will not fall off, even if it hits the bottom of a lake or rock.

Sup fin screw installation

To install this screw you will need a 2 sided screwdriver. This screw is compatible with the hook+pin fin that comes with your initial iSUP board purchase. Once the fin is put into the fin box, simply screw this screw through the opening in both the fin box and the fin, and tightly secure it on the other side.

The Reviews Are In!

Customer Reviews

Based on 10 reviews
Chelios Panama
SUP Fin Screw for Tower iSUPs

It arrived quickly and fit perfectly :-)

Deborah Winiarski
Just what I needed!

My fin screw got lost while I was transporting my board. Yours was the only site where I found the right piece without having to buy extra parts that I didn't need. It was shipped quickly, and works perfectly! I was back on the water the day after it arrived. Thanks so much! You rock!

Ray Hanks
New Fix

will solve problem

Brian Yates
Great customer service

Tower was awesome. They had what I needed easy to shop online and quick with shipping. THis is the way to do business.

Jerry Marsh
It's a screw.

Allows for more secure attachment then the tethered peg you push in.

Needed the fin screw for the river fin

Great and rapid customer service and excellent product, thank you very much!

Dave Gresh
A necessary back up.

Never know when you will need an extra screw. Works perfectly!

Gregory Woods
Fin Screw

Was what I expecting. Fits and works great.

Gregory Parr

Good to have; you never know...

Dennis Welsh
iSUP Fin Screw

good, good, good!